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2 years ago

Pls help its not for me but could you still help my brother?

Mathematics

2 answers:

sasho [114]2 years ago

7 0

Answer:

Step-by-step explanation:

rjkz [21]2 years ago

3 0

Answer:the answer is online search up “what is equivalent to 4/9x7” and you’ll get the answer

Step-by-step explanation:

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Solve for m<br> 2/3=m/42

almond37 [142]

$\frac{2}{3}=\frac{m}{42}\ \ \ \ | multiply\ by\ 42\\\\ \frac{2*42}{3}=m\\\\
28=m\\\\Solution\ is\ m=28.$

4 0

3 years ago

Sherri has 23 pieces of jewelry to sell. She sells the bracelets for $2 and the necklaces for $3, and earns a total of $55. If t

Oksana_A [137]

2x+3y=55

Step-by-step explanation:

5 0

2 years ago

Without measuring, how can you determine whether two sides of a polygon are congruent?

Alinara [238K]

Ow... this geometry is sure hard!!
.
Wait a second. Nope.
.
TWO SIDES!!
.
ITT!!
.
CONVERSE ITT!!
.
Converse Isosceles Triangle Theorem!
.
Look at the picture I attached.
.
Two angles equal... THE SIDES ADJACENT TO IT EQUAL!!
.
PERFECTO!!
.
Hope I helped!!

Source: I am learning Honors Geometry, near end of course.

7 0

3 years ago

Find derivative of y=(-3x^5+1)^3

sattari [20]

Use the chain rule:

$\frac{\mathrm dy}{\mathrm dx}=3(-3x^5+1)^2\frac{\mathrm d[-3x^5+1]}{\mathrm dx}=3(-3x^5+1)^2(-15x^4)=\boxed{-45x^4(1-3x^5)^2}$

6 0

3 years ago

Determine the intervals on which the function is increasing, decreasing and constant

viva [34]

Answer:

increasing: (-∞, 0)
decreasing: (0, ∞)

Step-by-step explanation:

The function goes up to the right until it gets to the vertex at x=0. Then it goes down to the right. That is, it is ...

increasing from -∞ to 0 (not including 0)

decreasing from 0 to +∞ (not including 0)

_____

At x=0, the function is neither increasing nor decreasing, so x=0 is not part of either interval.

6 0

3 years ago